Vue.js 实现微信公众号菜单编辑器功能(二)

methods: {
 //删除菜单
 delMenu:function(){
  //删除主菜单
  if(this.selectedMenuLevel()==1&&confirm('删除后菜单下设置的子菜单也将被删除')){
   if(this.selectedMenuIndex===0){
    this.menu.button.splice(this.selectedMenuIndex, 1);
    this.selectedMenuIndex = 0;
   }else{
    this.menu.button.splice(this.selectedMenuIndex, 1);
    this.selectedMenuIndex -=1;
   }
   if(this.menu.button.length==0){
    this.selectedMenuIndex = ''
   }
  //删除子菜单
  }else if(this.selectedMenuLevel()==2){
   if(this.selectedSubMenuIndex===0){
    this.menu.button[this.selectedMenuIndex].sub_button.splice(this.selectedSubMenuIndex, 1);
    this.selectedSubMenuIndex = 0;
   }else{
    this.menu.button[this.selectedMenuIndex].sub_button.splice(this.selectedSubMenuIndex, 1);
    this.selectedSubMenuIndex -= 1;
   }
   if(this.menu.button[this.selectedMenuIndex].sub_button.length==0){
    this.selectedSubMenuIndex = ''
   }
  }
 },
}

<div class="weixin-menu-detail">
 <!-- 显示选中的菜单和删除菜单按钮 -->
 <div class="menu-input-group" style="border-bottom: 2px #e8e8e8 solid;">
  <div class="menu-name">{{menu.button[selectedMenuIndex].name}}</div>
   <div class="menu-del" @click="delMenu">删除菜单</div>
  </div>
 </div>
 </div>

data:{
 menuNameBounds:false,//菜单长度超出上限标记
},
methods:{
 //判断菜单名长度
 checkMenuName:function(val){
  if(this.selectedMenuLevel()==1&&this.getMenuNameLen(val)<=8){
   this.menuNameBounds=false
  }else if(this.selectedMenuLevel()==2&&this.getMenuNameLen(val)<=16){
   this.menuNameBounds=false
  }else{
   this.menuNameBounds=true
  }
 },
 //获取字符串中文字符长度
 getMenuNameLen: function (val) {
  var len = 0;
  for (var i = 0; i < val.length; i++) {
   var a = val.charAt(i);
   a.match(/[^\x00-\xff]/ig) != null?len += 2:len += 1;
  }
  return len;
 }
}

<div class="weixin-menu-detail">
 <div class="menu-input-group">
  <div class="menu-label">菜单名称</div>
  <div class="menu-input">
   <input type="text" name="name" placeholder="请输入菜单名称" class="menu-input-text" v-model="menu.button[selectedMenuIndex].name" @input="checkMenuName(menu.button[selectedMenuIndex].name)">
   <!-- 这里用v-show来判断是否超过上限，menuNameBounds为true则显示 -->
   <p class="menu-tips" style="color:#e15f63" v-show="menuNameBounds">字数超过上限</p>
   <p class="menu-tips">字数不超过4个汉字或8个字母</p>
  </div>
 </div>
</div>

data:{
 "menu": {
  "button": [
  {
   "type": "click",
   "name": "主菜单1",
   "key": "测试key",
   "sub_button": []
  },
  {
   "name": "主菜单2",
   "sub_button": [
   {
    "type": "view",
    "name": "子菜单",
    "url": "https://cn.vuejs.org/v2/guide/"
   }]
  },
  {
   "name": "主菜单3",
   "sub_button": [
   {
    "type": "view",
    "name": "子菜单",
    "url": "https://cn.vuejs.org/v2/guide/"
   }
  }]
 }
}

//获取菜单类型 1. view网页类型，2. media_id类型和view_limited类型 3. click点击类型，4.miniprogram表示小程序类型
methods: {
 selectedMenuType: function () {
  switch (this.menu.button[this.selectedMenuIndex].type) {
   case 'view':return 1;
   case 'media_id':return 2;
   case 'click':return 3;
   case 'miniprogram':return 4;
  }
 }
}
<div class="weixin-menu-detail">
 <div class="menu-input-group">
  <div class="menu-label">菜单内容</div>
  <div class="menu-input">
   <select v-model="menu.button[selectedMenuIndex].type" name="type" class="menu-input-text">
    <option value="view">跳转网页(view)</option>
    <option value="media_id">发送消息(media_id)</option>
    <option value="miniprogram">打开指定小程序(miniprogram)</option>
    <option value="click">自定义点击事件(click)</option>
   </select>
  </div>
 </div>
 <!-- 由于内容类型很多，就以click类型为例 -->
 <div class="menu-content" v-if="selectedMenuType()==3">
  <div class="menu-input-group">
   <p class="menu-tips">用于消息接口推送，不超过128字节</p>
   <div class="menu-label">菜单KEY值</div>
   <div class="menu-input">
    <input type="text" class="menu-input-text" v-model="menu.button[selectedMenuIndex].key">
   </div>
  </div>
 </div>
</div>